Some fossils, called index fossils, are particularly useful in correlating rocks.
Some of the most useful fossils for dating purposes are very small ones.
For example, microscopic dinoflagellates have been studied and dated in great detail around the world.
Teaching about Earth's history is a challenge for all teachers.
Time factors of millions and billions of years is difficult even for adults to comprehend.
Fossils and Radioactive Dating This lesson teaches students about relative dating and about how the fossil record provides In this Life Science activity.
Learn The fossil record is the record of former life forms as preserved in the earth's rocks Key event for the.
Throughout the history of life, different organisms have appeared, flourished and become extinct.
Many of these organisms have left their remains as fossils in sedimentary rocks.
Describe how the science of The Rock and Fossil Record unconformity absolute dating isotopes radiometric dating halflife 1.